Name:Shouhong Guang
Address:University of Science and Technology of China, 

School of Life Sciences, Hefei, Anhui 230027, China
2010-Professor, School of Life Sciences, USTC
2005-2010Postdoc, University of Wisconsin-Madison
1999-2004PhD, University of Wisconsin-Madison
1996-1999MS, University of Science and Technology of China
1991-1996BS, University of Science and Technology of China
The mechanistic underpinnings of RNAi are broadly conserved across eukaryotes. Initial successes utilizing small RNAs to target oncogenic and viral mRNAs have generated excitement that small RNAs may eventually be utilized to treat human diseases. Prior to the rational use of small RNA in therapeutics, it is essential to understand their biogenesis, specificity, transportation, and endogenous roles.
We am very interested in how small RNAs are transported and regulated, and how they function in the nucleus in metazoan. To address these questions, we conducted a genetic screen to identify factors required for nuclear RNAi in the model organism C. elegans and have identified three new genes termed nuclear RNAi defective (NRDE)-1/2/3. We have also identified a bifurcation of the nuclear and cytoplasmic RNAi pathway, a novel small RNA transport pathway, and a novel nuclear gene silencing mechanism.
Our research indicates that metazoans use a different mechanism than A. thaliana and S. pombe to silence gene expression in the nucleus. Further understanding how small RNAs function in the nucleus via NRDEs may permit more stable and specific inhibition of gene expression and facilitate advancement of both basic research and therapeutics.
1.Chenchun Weng (#), Joanna Kosalka (#), Ahmet C. Berkyurek (#), Przemyslaw Stempor, Xuezhu Feng, Hui Mao, Chenming Zeng, Wen-Jun Li, Yong-Hong Yan, Meng-Qiu Dong, Natalia Rosalía Morero, Cecilia Zuliani, Orsolya Barabas, Julie Ahringer, Shouhong Guang (*), and Eric A. Miska (*) (2018) The USTC complex co-opts an ancient machinery to drive piRNA transcription in C. elegans. Genes & Development Jan 1;33(1-2):90-102. doi: 10.1101/gad.319293.118.
2.Chengming Zhu (#), Qi Yan (#), Chenchun Weng, Xinhao Hou, Hui Mao, Dun Liu, Xuezhu Feng (*) , Shouhong Guang (*) (2018) Erroneous ribosomal RNAs promote the generation of antisense ribosomal siRNA. PNAS 2018 Oct 2;115(40):10082-10087. doi: 10.1073/pnas.1800974115.
3.Fei Xu (#), Xuezhu Feng (#), Xiangyang Chen, Chenchun Weng, Qi Yan, Ting Xu, Minjie Hong, and Shouhong Guang (*)(2018)A cytoplasmic Argonaute protein promotes the inheritance of RNAi. Cell Reports. 2018 May 22;23(8):2482-2494
4.Xufei Zhou (#), Xuezhu Feng (#), Hui Mao, Mu Li, Fei Xu, Kai Hu, and Shouhong Guang(*)  (2017) RdRP-synthesized antisense ribosomal siRNAs silence pre-rRNA via the nuclear RNAi pathway. Nature Structural & Molecular Biology 2017 Mar;24(3):258-269. doi: 10.1038/nsmb.3376.
5.Hui Mao (#), Chengming Zhu (#), Dandan Zong, Chenchun Weng, Xiangwei Yang, Hui Huang, Dun Liu, Xuezhu Feng (*), and Shouhong Guang (*) (2015) The Nrde pathway mediates small RNA-directed histone H3 lysine 27 trimethylation in Caenorhabditis elegans. Current Biology 2015 Sep 21;25(18):2398-403.
6.Chen X (#), Li M (#), Feng X (*), Shouhong Guang (*) (2015) Targeted Chromosomal Translocations and Essential Gene Knockout Using CRISPR/Cas9 Technology in Caenorhabditis elegans. Genetics 2015 Dec;201(4):1295-306 doi: 10.1534/genetics.115.181883.
7.Zhou X (#), Xu F (#), Mao H, Ji J, Yin M, Feng X (*), and Shouhong Guang (*) (2014) Nuclear RNAi Contributes to the Silencing of Off-Target Genes and Repetitive Sequences in Caenorhabditis elegans. Genetics 2014 May;197(1):121-32.
8.Xiangyang Chen (#), Fei Xu (#), Chengming Zhu, Jiaojiao Ji, Xufei Zhou, Xuezhu Feng (*), and Shouhong Guang (*) (2014) Dual sgRNA-directed gene knockout using CRISPR/Cas9 technology in Caenorhabditis elegans. Scientific Reports 2014 Dec. 22;4:7581.
9.Guang, S., Bochner, A.F., Pavelec, D.M., Burkhart, K.B., Burton, N., and Kennedy, S., (2010) Small regulatory RNAs inhibit RNA Polymerase II during the elongation phase of transcription. Nature, 2010,Jun 24;465(7301):1097-101. doi: 10.1038/nature09095. Epub 2010 Jun 13.
10.Guang, S. (#), Bochner, A.F. (#), Pavelec, D.M., Burkhart, K.B., Harding, S., Lachowiec, J., and Kennedy, S., (2008) An Argonaute transports siRNAs from the cytoplasm to the nucleus. Science Jul 25;321(5888):537-41. doi: 10.1126/science.1157647. Erratum in: Science. 2009 Dec

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